Mining methods in India

Q1. What should be the number of Workmen’s Inspector in a large UG mine? (a) 1 (b) 2 (c) 3 (d) 4 Q2. Longwall mining method is best suitable for .. ? (a) Flat & moderately flat seam (b) Steeply inclined mine (c) Fractured & geologically disturbed seam (d) Seam with high capability index Q.3 Power pack is provided at Longwall face to give pressure to ….. (a) Powered support (b) Armored flexible conveyor (c) Double ended ranging drum sheave (d) Stage loader Q4. Over 90% of UG coal production in India comes from …. (a) Longwall method (b) Hydraulic Mining Method (c) Bord & Pillar Method (d) Blasting Gallery Method Q5. A road in a proper coal seam is called ? (a) Traveling road (b) Gallery (c) Drift (d) Haulage road Q6. The process that sends sand water mixture in UG coal depillaring district is called (a) Jigging operation (b) Granting separation operation (c) Stowing Method (d) Coal drawing operation Q7. Side discharge Loader (SDL) is a …… (a) Crawler mounted...

Q1.Which Nomenclature is used for grading of non-coking coal ? (a) Alphabetical (b) Numerical (c) Apha-Numeric (d) Roman Q2.What is the basis for grading of Non-coking coal ? (a) Ash (b) Moisture (c) Calorific Value (d) All of the above Q3.Which is the methodology for gradation of Non-coking coal ? (a) UHV (b) GCV (c) Both (d) None Q4.Calorific value of coal means ? (a) Burning power of coal (b) Heating power of coal (b) Heat evolved by burning 1Kg coal (d) None of the above. Q5.UHV stands for ………… (a) Ultimate Heat Value (b) Useful Heat Value (c) Uniform Heat Value (d) Unilateral Heat Value Q6.The Empirical formula to derive UHV is ? (a) 8,900-138x(A+M) (b) 9,200-138x(M+A) (c) 8,900-140(A+M) (d) 7,70,-139(A+M) Q7.What is the disadvantage of UHV based coal gradation ? (a) Very easy to derive (b) It is not correct (c) It is formula based & not give correct value (d) All of the above Q8. Which of the following is the descending order of gradation of Non-coking c...

Q1.Who initiated first commercial coal mining in India ? Ans.Warren Hastings at Raniganj (W.B.) in 1774. Q2.Who opened first Coal Mines in India and when ? Ans.Jhan Summer and Hitler of East India at Raniganj Coalfields on 11/08/1774. Q3.When was first underground Coal Mining started in India ? Ans.1815 Q4.Who was the first Indian entrepreneur in Coal Mining in India? Ans.Prince Dwarkanath Tagore, relative of Rabindranath Tagore, CARR, Tagore & Co. in 1835 Q5.Which period was the first boom year of Indian Coal Industry & Why ? Ans 1907 & 1908 due to growth of JCF (Jharia Coalfields & completion of Grand Chord Line of East India Railway). Q6.When was first underground Coal Mining started in India ? Ans.1815 Q7.What was coal Production of India in 1942 & 1946? Ans.29 MT and 30 MT respectively. Q8. Write about NATIONALISATION OF INDIAN COAL MINES : Non Coking Coal Mines were nationalized in 31st Jan.1973 (effective from 01.05.1973) except captive mines...

Q1. How many days of Special Leave is permissible as per CIL leave rules ? (a) 2 months (b) 4 months (c) 6 months (d) 1 month Q2. How many days of Casual Leave can be taken at a time ? (a) 5 days (b) 7 days (c) 4 days (d) 8 days Q3. How may days of Maternity Leave is admissible to the female executives ? (a) 30 days (b) 60 days (c) 90 days (d) 180 days Q4. How may days of Earned Leave is encashable at the time of retirement ? (a) 240 days (b) 280 days (c) 300 days (d) None of the above Q5. Special Disability Leave is granted for following reasons. (a) Disease arising out of employment (b) General disease (c) Injury while on duty (d) a & c Q6. How may days of special casual leave is granted for attending Seminar/conference by Union representative ? (a) 5 days (b) 8 days (c) 10 days (d) None Q7. How may days of Transit Leave is granted in case of change of station from one place to another ? (a) 8 days (b) 9 days (c) 6 days (d) None Q8. Minimum year of service required...

Q1. Which of the following equipments are chain mounted? (a) Side Discharge Loader (SDL)       (b) Load Haul Dump (LHD)  (c) Both           (d) None Q2. Which of the following is a Mass Production technology for UG? (a) SDL           (b) LHD          (c) PSLW        (d) All Q3. Which of the following equipments can be tyre mounted? (a) Pay Loader            (b) Grader       (c) Dozer         (d) All Q4. Which of the following company has deployed the largest size Shovel-Dumper combination (42cum + 240T) in CIL? (a) SECL         (b) MCL      ...

Q1. What should be the number of Workmen’s Inspector in a large UG mine? (a) 1                 (b) 2                 (c) 3                 (d) 4 Q2. Longwall mining method is best suitable for .. ? (a) Flat & moderately flat seam                                  (b) Steeply inclined mine        (c) Fractured & geologically disturbed seam              (d) Seam with high capability index Q.3 Power pack is provided at Longwall face to give pressure to …....